I’m working on setting up a DC UPS for my home network closet (router, NAS, cameras, etc). Ideally for simplicity, I would have these connected in parallel:
- CV/CC power supply set to 3.3V/cell or ~70% SOC
- 8s LiFePO4 battery, 25.6V nominal
- Load (buck and boost converters to 5V, 12V, 48V)
The batteries I have in-hand are these: https://k2batterystore.com/collections/catalog/products/24v-11ah-lithium-iron-phosphate-battery
What I’m mainly concerned about is whether or not the batteries will properly maintain balance in this setup without a smart charger cycling them up to 100% SOC every so often. Does anyone have references or reading material on this subject?
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